The invention discloses a metallurgical furnace capable of automatically cleaning ash, and relates to the field of metallurgical furnaces. The metallurgical furnace capable of automatically cleaning the ash includes a furnace body, the front surface of the furnace body is provided with a feeding pipe, an air delivery pipe and a discharging pipe in a penetrating mode, and guiding rails are fixedlyinstalled at the inner wall of the furnace body through bolts; and the number of the guiding rails is two and the two guiding rails are symmetrically arranged at the inner wall of two sides of the furnace, sliding grooves are formed in the opposite surfaces of the two guiding rails, and sliding blocks are slidably installed in the sliding grooves. According to the metallurgical furnace capable ofautomatically cleaning the ash, a motor is arranged, the motor can drive a spindle to rotate after being activated, and a clamping tooth and a toothed rod of a turntable are matched to drive the toothed rod to rise when the clamping tooth is engaged with the toothed rod to enable a fuel placing frame to lift and further enable the fuel placing frame to waggle; and ash on the fuel placing frame drops out due to waggling, the ash which accumulates on the fuel can be removed, and the condition that insufficient combustion due to the ash which enables the fuel to contact insufficiently with air can be avoided.